Surgical treatment of juxtarenal aortic occlusion

From 1974 to 1976, four patients with juxtarenal aortic occlusion were operated upon with no surgical mortality. Thromboendarterectomy (TEA) of the aorta with renal revascularization was performed in one patient, and TEA with grafting in three. Intraoperative renal protection was particularly important, since suprarenal aortic clamping was often required in these cases. Possible renal embolism developed in one patient postoperatively. In order to prevent renal embolism and to minimize ischemic insult to the kidney, the value of the following procedures was stressed; (a) irrigation of aortic lumen with saline after TEA under suprarenal aortic clamping with renal arteries kept occluded, and (b) re-application of aortic clamp below the renal arteries after irrigation. Since the most distal level of occlusive process was the common femoral artery in our series, the patient with this desease entity should be treated more actively.     

Surgical treatment result of abdominal aortic aneurysm in Beh?et's disease.

OBJECTIVE: We report our surgical treatment results of abdominal aortic aneurysm (AAA) in Beh?et's disease patient. MATERIALS AND METHODS: Between September 1998 and June 2006, the authors have performed 21 procedures for AAA in 12 patients with Beh?et's disease. Male to female sex ratio was 3:1 and mean age was 34 years old. Beh?et's disease was diagnosed clinically using criteria of International Study Group for Beh?et's Disease (1990). Retrospective analysis was made. RESULTS: There were six infrarenal, five suprarenal, and one double (suprarenal and infrarenal)AAA. Six graft interposition, six patch closure, and one stent-graft insertion were performed (one graft interposition and one patch closure were simultaneously performed for double AAA). Eight recurrent aneurysms were noted in six (50%) patients. Four stent-graft insertion, two patch closures, one graft interposition and one explothoracotomy only were performed for recurrent aneurysms. Overall recurrence rate of 21 procedures was 38.1%; 14.3% for graft interposition, 62.5% for patch closure, and 40% for stent-graft insertion. CONCLUSION: Though the resection and graft interposition is technically difficult in many occasions, it should be considered as the procedure of choice for abdominal aortic aneurysm in Beh?et's disease. Endovascular interventions may be one of the treatment modality but the result needs further long-term follow-up.     

Juxtarenal aortic atherosclerosis. Surgical experience and functional result.

Ninety patients underwent combined aortic (90) and renal artery (138 arteries) reconstruction for severe, symptomatic aortic occlusive disease (47 patients), aortic aneurysmal disease (30 patients), and visceral atherosclerosis (13 patients). Transaortic endarterectomy was used for 67% of renal artery reconstructions and 69% of visceral arteries. Aortic reconstruction required prosthetic grafting in 74%. A standard transabdominal approach was used in 72 of 90 patients (80%), and thoraco-retroperitoneal exposure was necessary in 18 patients. Perioperative mortality was 9% (8/90) and morbidity 16% (14/90). Ninety per cent of the patients were evaluated at long-term (mean 32 months). Hypertension was cured or improved at discharge in 82% (59/72), and in 96% hypertension improvement was sustained during the follow-up interval. Renal function was improved or preserved in 93% (40/43) at discharge, and this response was sustained in 84% during the follow-up period. Late mortality (8/74, 11%) was lower than expected and is attributed to the technique of combined repair, the cure and control of hypertension, the prevention of ongoing renal ischemia, and the preservation of renal function.     

Surgical management of high aortoillac occlusion.

Seventeen patients with high aortoiliac occlusion, 15 chronic and two acute, were evaluated at the Walter Reed Army Medical Center during the period 1964-1973. Fifteen patients with chronic occlusion and one patient with an acute occlusion were operated upon without an operative death. The operative technique outlined emphasizes temporay interruption of renal blood flow during the initial aortic thromboendarterctomy phase of the procedure. In those patients in whom renal artery control was secured, no instance of postoperative renal insufficiency was noted. Symptomatic improvement occurred in all patients. Ultimate follow-up results will be dependent on the amount of associated vascular disease.     

髂动脉闭塞的外科治疗

髂动脉闭塞是血管外科常见的动脉闭塞性疾病。病因多数为动脉粥样硬化。自上世纪40、50年代起,随着外科手术和介入技术的发展和改进,血管移植材料的改善,术中、术后监护的发展使得手术死亡率和并发症明显减少,安全性和近、远期疗效得到明显提高[1]。一、治疗适应证的选择动脉硬化闭塞症是全身性疾病。因此对髂动脉闭塞的动脉重建治疗(包括外科手术和介入治疗)应首先判断患者的全身状况及血管条件是否能够耐受及适合手术或介入治疗,然后再确定具体的手术或介入方式,最后还要关注操作的细节。这样就能够选择出适当的治疗方案。根据我们的经验,…     

手术治疗锁骨下动脉闭塞症

目的探讨锁骨下动脉闭塞症的有效手术治疗方法。方法 2005年12月-2010年2月,收治锁骨下动脉闭塞症53例。男40例,女13例;年龄22～77岁,平均64岁。病程15d～20个月,平均6.5个月。动脉硬化闭塞症49例,大动脉炎4例。左锁骨下动脉闭塞35例,狭窄5例;右锁骨下动脉闭塞5例,狭窄4例;双侧锁骨下动脉闭塞4例。对39例单侧锁骨下动脉闭塞伴颈、脑动脉病变者采用腋动脉-腋动脉聚四氟乙烯(polytetra?uoroethylene,PTFE)人工血管转流术;10例不伴颈、脑动脉病变者行颈动脉-锁骨下动脉PTFE人工血管转流术。4例双侧锁骨下动脉闭塞者采用升主动脉-双锁骨下动脉PTFE人工血管转流术。术后常规应用抗凝及抗血小板药物治疗。结果 1例大动脉炎患者术后48h动脉吻合口及人工血管血栓形成;余52例手术均获成功,手术成功率98.11%。术中神经钳夹损伤2例,术后双侧吻合口周围血肿4例,均经保守治疗痊愈。52例手术成功患者均获随访,随访时间1～52个月,平均24.5个月。患者均存活,术前椎基底动脉及上肢动脉缺血症状均消失。彩色超声多普勒血流探测仪检查见吻合口及人工血管血流通畅,术后1年及2年人工血管通畅率均为100%;患侧椎动脉血流方向恢复正常。1例术后18个月出现腋动脉吻合口假性动脉瘤,行介入栓塞治愈。结论锁骨下动脉闭塞症的治疗术式较多,但应根据患者全身情况和病变特点进行合理选择。围手术期的正确处理及术中严格操作,是保证手术成功的关键。     

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自 195 1年ＤｕＢｏｓｔ[1 ] 首次成功施行腹主动脉瘤切除术以来 ,由于手术技巧的不断改进和更为妥善的术前术后处理 ,目前在世界范围内择期腹主动脉瘤围手术期病死率已被控制在 5 % [2 ] 以内。我院 1998年报道的 2 6 1例肾动脉下腹主动脉瘤的围手术期病死率为 3 8% [3] 。虽然腹主动脉瘤的手术死亡率自 2 0世纪 70年代后已降至很低 ,但这并不意味所有的腹主动脉瘤病人都需立即行手术治疗。只有当瘤体破裂的风险大于手术风险时 ,手术才是正确的选择。1　传统手术治疗1.1　手术指征对腹主动脉瘤手术指征的掌握涉及瘤体破裂风险、手术风险和…     

Surgical treatment of the aortic aneurysm

For 93 cases of thoracic and 118 cases of abdominal aneurysms, the over-all operative mortality rate was 24.7 per cent and 9.3 per cent, respectively. Although the over-all operative mortality rate for 37 patients with aneurysms of the ascending aorta or aortic arch had been 40.5 per cent, recent advances in surgical technique led to a higher survival rate so that since 1975 no death occurred among 14 consecutive surgery cases. Cardiopulmonary bypass with or without selective perfusion of the carotid arteries or temporary external bypass procedures were employed in these 14 cases. The over-all operative mortality rate for 56 patients with aneurysms of the descending thoracic aorta was 14.3 per cent. Temporary external bypass procedures were employed in 49 cases. The operative mortality rate for 99 patients with unruptured abdominal aneurysms was five per cent, and that for 19 patients with ruptured aneurysms was 31.5 per cent.     

Surgical treatment of internal carotid artery occlusion

PURPOSE: Nonoperative treatment of recent internal carotid artery (ICA) occlusion is associated with increased recurrent stroke rates. We analyzed our results of carotid endarterectomy (CEA) for treatment of symptomatic recent ICA occlusion to evaluate its feasibility, safety, and outcomes. METHODS: From 1990 to 2002, all patients with transient ischemic attack (TIA), amaurosis fugax, and minor stroke underwent duplex ultrasound (US) scanning and arteriography to confirm the diagnosis of ICA occlusion. Within 2 weeks of symptom onset, patients underwent operative exploration with attempted CEA. ICA occlusion was detected at preoperative angiography and confirmed at surgery. Patients with extensive ICA plaque not amenable to endarterectomy underwent external CEA with ICA ligation. RESULTS: Over 12 years, 87 patients with symptomatic ICA occlusion underwent 90 operations for ICA exploration. In 30 patients (18 men, 12 women) with TIA (45%), amaurosis fugax (19%), or minor stroke (36%), CEA to treat ICA occlusion was technically successful. There was 1 postoperative stroke, 2 asymptomatic internal carotid occlusions, and no restenoses (mean follow-up, 26 months; range, 1-93 months). In 57 patients (37 men, 20 women) with TIA (41%), amaurosis fugax (27%), or stroke (32%) in whom CEA was unsuccessful, external CEA was performed. In this group there were no postoperative strokes, 2 asymptomatic external carotid artery occlusions, and 1 restenosis (>70%) (mean follow-up, 22 months; range, 1-73 months). There were no late strokes in either group. CONCLUSION: Operative exploration and endarterectomy to treat symptomatic ICA occlusion is feasible and safe. Patients with symptomatic ICA occlusion should be considered candidates for CEA.     

Surgical treatment of chronic aortic dissections

Between January 1976 and March 1987, 78 patients underwent surgery for chronic aortic dissection at our institution. The ascending aorta was involved in 66 cases (Stanford type A) and was not involved in 12 cases (Stanford type B), wherever the initial dissection was suspected. Aortography remains the main preoperative investigation. The surgical technique varies according to the type of dissection. It seems essential to exclude the primary intimal tear and all dilated segments of the aorta must be replaced. The overall operative mortality was 11.5% (7.5% in type A, 33.3% in type B dissection). Sixty-three patients have been followed for a period varying between 6 months and 10 years (mean 5 years). The overall survival at 6 years is 60% +/- 5.6%. Because of the ultimate risk of aneurysmal dilatation of the false channel, these patients must be followed by CT scanning, colour flow Doppler echocardiography, magnetic resonance imaging, and in some cases, aortography.